20122001010 has 24 divisors (see below), whose sum is σ = 52317202860. Its totient is φ = 5365866912.

The previous prime is 20122000993. The next prime is 20122001021. The reversal of 20122001010 is 1010022102.

It can be written as a sum of positive squares in 2 ways, for example, as 18863099649 + 1258901361 = 137343^2 + 35481^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20122000983 and 20122001001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111788805 + ... + 111788984.

Almost surely, 2^20122001010 is an apocalyptic number.

20122001010 is an abundant number, since it is smaller than the sum of its proper divisors (32195201850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122001010 is a wasteful number, since it uses less digits than its factorization.

20122001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223577802 (or 223577799 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20122001010 its reverse (1010022102), we get a palindrome (21132023112).

The spelling of 20122001010 in words is "twenty billion, one hundred twenty-two million, one thousand, ten".